Abstract: A nasal breathing aid comprising the following components: a housing; facial engagement means attached thereto; at least two nostril pieces coupled to the housing. On the housing, there are at least two nasal inlets; at least one vent; and in the housing: a first passage and a second passage, each communicating an inlet with a vent, and fluid-isolated from each other, and restriction means configured to allow free flow of air through each passage from a vent to an inlet, and flow of air through the first passage independently restricted from flow of air through the second passage, from an inlet to a vent.

Abstract: The present invention discloses a system and a method for identifying input images of three-dimensional objects using at least one mathematical method, which enables calculating the resonance frequencies (also known as the natural frequencies) of a three-dimensional object. The system may enable analyzing three-dimensional input objects; and identifying the input object by comparing the signature of the input object with signatures of the known objects stored in at least one database.

Abstract: The disclosed invention enables the increasing of the reusability of molds for manufacturing parts using casting methods. It enables manufactures the searching and locating of molds which suit their needs. Thus, when needing to cast or inject a certain part, manufactures may reuse an existing mold instead of having to manufacture the mold itself. The disclosed system and method enable manufactures the providing of two- or three-dimensional computer aided design (CAD) drawings of parts corresponding to molds which they no longer need, as well as the technical specifications of these molds. Similarly, manufactures may provide two or three-dimensional CAD drawings of the parts they wish to manufacture, as well as the technical specifications of these parts. A decision support system enables users the finding of possible matches between product casting specifications and the product specifications through an interactive web application which is updated in real-time.